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spring-projectsGH-2170: Add a way to create a custom OffsetAndMetadata
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39 changes: 39 additions & 0 deletions
39
spring-kafka/src/main/java/org/springframework/kafka/listener/ListenerMetadata.java
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/* | ||
* Copyright 2016-2022 the original author or authors. | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* https://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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package org.springframework.kafka.listener; | ||
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/** | ||
* Metadata associated to a {@link org.springframework.kafka.annotation.KafkaListener}. | ||
* | ||
* @author Francois Rosiere | ||
* @since 2.8.5 | ||
* @see org.springframework.kafka.annotation.KafkaListener | ||
*/ | ||
public interface ListenerMetadata { | ||
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/** | ||
* Return the listener id. | ||
* @return the listener id. | ||
*/ | ||
String getListenerId(); | ||
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/** | ||
* Return the group id. | ||
* @return the group id. | ||
*/ | ||
String getGroupId(); | ||
} |
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spring-kafka/src/main/java/org/springframework/kafka/listener/OffsetAndMetadataProvider.java
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/* | ||
* Copyright 2016-2022 the original author or authors. | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* https://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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package org.springframework.kafka.listener; | ||
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import org.apache.kafka.clients.consumer.OffsetAndMetadata; | ||
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/** | ||
* Provider for {@link OffsetAndMetadata}. In case of async commits of the offsets, | ||
* the provider can be used in combination with an {@link org.apache.kafka.clients.consumer.OffsetCommitCallback} to | ||
* have more granularity in the way to create an {@link OffsetAndMetadata}. | ||
* | ||
* @author Francois Rosiere | ||
* @since 2.8.5 | ||
* @see org.apache.kafka.clients.consumer.OffsetCommitCallback | ||
*/ | ||
public interface OffsetAndMetadataProvider { | ||
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/** | ||
* Provide an offset and metadata object for the given listener metadata and offset. | ||
* | ||
* @param listenerMetadata metadata associated to a listener. | ||
* @param offset an offset. | ||
* @return an offset and metadata. | ||
*/ | ||
OffsetAndMetadata provide(ListenerMetadata listenerMetadata, long offset); | ||
} |
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